#include<stdio.h>
void sxfind(int *a,int i,int key){
	while(*(a+i)!=key){i--;}
	if(i==0){printf("%d is not found!\n",key);}
	else{printf("%d is number %d\n",key,i);}
}
void main(){
	printf("show the date sequence:\n");
	int a=11;
	int s[100];
	for(int i=1;i<a;i++){
		scanf("%d",&s[i]);
	}
	printf("imput the number to search:");
	scanf("%d",&s[0]);
	sxfind(s,a,s[0]);
}//10 6 5 84 65 651 5 485 51 2